what is the method of cultivation of sunflower?
Answers
Answer:
Sunflower is sown by Dibbling method which requires 5-6 kg seed per hectare, while furrow sowing needs 8-10 kg per hectare. The excess seedlings are thinned 10-15 days after seedling emergence. Seeds should be treated with captan or ceresan @ 3 g/kg seed under dryland conditions.
Answer:
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Explanation:
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The sunflower (Helianthus annuus) is a living annual plant in the family Asteraceae, with a large flower head (capitulum). The stem of the flower can grow up to 3 metres tall, with a flower head that can be 30 cm wide. Other types of sunflowers include the California Royal Sunflower, which has a burgundy (red + purple) flower head.
Sunflower
Scientific classification
Kingdom:
Plantae
Division:
Magnoliophyta
Class:
Magnoliopsida
Order:
Asterales
Family:
Asteraceae
Tribe:
Heliantheae
Genus:
Helianthus
Binomial name
Helianthus annuus
L.
The flower head is actually an inflorescence made of hundreds or thousands of tiny flowers called florets. The central florets look like the centre of a normal flower, apseudanthium. The benefit to the plant is that it is very easily seen by the insects and birds which pollinate it, and it produces thousands of seeds.
The sunflower is the state flower of Kansas. That is why Kansas is sometimes called the Sunflower State. To grow well, sunflowers need full sun. They grow best in fertile, wet, well-drained soil with a lot of mulch. In commercial planting, seeds are planted 45 cm (1.5 ft) apart and 2.5 cm (1 in) deep.